CVE-2026-7079 Tenda F456 httpd AdvSetWan fromAdvSetWan buffer overflow
Remote attackers can trigger a buffer overflow in the Tenda F456 router's httpd service via the wanmode argument, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7079?
CVE-2026-7079 is a high-severity memory corruption vulnerability in Tenda F456, published on 27 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in Tenda F456 1.0.0.5. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. This manipulation of the argument wanmode causes buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-7079?
It affects 1 product.
Products include Tenda F456 Firmware.
How do I fix CVE-2026-7079?
No fix has been published for CVE-2026-7079 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-7079 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7079 exists.
Other vulnerabilities in Tenda F456
- CVE-2026-7078 Tenda F456 httpd SetIpBind fromSetIpBind buffer overflow
- CVE-2026-7080 Tenda F456 httpd PPTPUserSetting fromPPTPUserSetting buffer overflow
- CVE-2026-7081 Tenda F456 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow
- CVE-2026-7082 Tenda F456 httpd WrlExtraSet formWrlExtraSet buffer overflow
- CVE-2026-7097 Tenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow
Sources
Also known as GHSA-cch8-f2xm-37p5.